'Register of the weather for 1809' at Invery and Edinburgh, by an unknown author., 1808-1812., Acc.10069/83. Meteorological records, mostly concerning Scotland and England, collected by the Royal Society of Edinburgh, Robert Mossman and others., Acc.10069/1-114. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/80641 Accessed April 24, 2024.